Bare repos are fine, but I don't think it is the method to manage dotfiles, the other approaches people use, stow among them, have their merits too. For me a bare repo never really worked that well. I use different dotfiles "profiles" that I mix and match for different environments (remote server, docker container, dev workstation, ...) and situations (terminal, xorg, dev, testing, etc.). I found a bare repo less than ideal for this, personally. It's perfectly fine for simple setups, granted.